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Expanding (root 18+root2)2= (root18+root2)(root18+root 2) = 18 + root36 + root36 + 2= 32Starting figure now stands at 32/(root8 -2)32/(root8 -2) is now multiplied by (root8 +2)/(root8 +2) which...
y = -3/2x + 7/2gradient = -3/2gradient of perpendicular = 2/3y = 2/3x + csub in given values of x and y to find cy = 2/3x + 2sub in a and b, so:b = 2/3a + 2
to start, find value of money shared by managers and then staff:Managers: (40/100) x 2100 = 840 Staff: 2100 - 840 = 1260 Then find share for each employee:Staff: 1260/7 = 180Share if divided equally: 2100...
This is a quadratic equation. Its factorises to give: (x-2)(x+3)=0. Therefore there are two different solutions of this equation: x1=2 and x2=-3.
1 tonne is equal to 1,000kg, so we get 8.5 tonnes ≡8.5×1,000= 8,500kg